What is CVE-2020-36438?

An issue was discovered in the tiny_future crate before 0.4.0 for Rust. Future does not have bounds on its Send and Sync traits.

How severe is CVE-2020-36438?

CVE-2020-36438 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-36438 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36438?

CVE-2020-36438 affects Tiny Future Project Tiny Future. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36438?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-36438 published?

CVE-2020-36438 was published on 2021-08-08 and last updated on 2026-06-17.

CVE-2020-36438

CVE-2020-36438 is a high-severity vulnerability in Tiny Future Project Tiny Future with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Tiny Future Project Tiny Future
Published: 2021-08-08
Last modified: 2026-06-17

Description

An issue was discovered in the tiny_future crate before 0.4.0 for Rust. Future<T> does not have bounds on its Send and Sync traits.

Frequently asked questions

What is CVE-2020-36438?: An issue was discovered in the tiny_future crate before 0.4.0 for Rust. Future<T> does not have bounds on its Send and Sync traits.
How severe is CVE-2020-36438?: CVE-2020-36438 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-36438 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36438?: CVE-2020-36438 affects Tiny Future Project Tiny Future. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36438?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-36438 published?: CVE-2020-36438 was published on 2021-08-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tiny_future_project:tiny_future:*:*:*:*:*:rust:*:*

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